Safety and efficacy of abobotulinumtoxinA for hemiparesis in adults with upper limb spasticity after stroke or traumatic brain injury: a double-blind randomised controlled trial. Lancet Neurol. 2015 Oct;14(10):992-1001. doi: 10.1016/S1474-4422(15)00216-1.
It usually consists of a court of final appeal (called the  Supreme court  or  Constitutional court ), together with lower courts. In many jurisdictions the judicial branch has the power to change laws through the process of judicial review.
The executive branch consists of the President, his or her advisors and various departments and agencies. This branch is responsible for enforcing the laws of the land. The judicial branch consists of the U.S. Supreme Court and the Federal Judicial Center. The Federal Judicial Center is the education and research agency for the federal courts.